## 導(dǎo)入XListVIew第三方庫(kù)文件。通過(guò)LinkedList將刷新數(shù)據(jù)插入到集合頭部，將加載的數(shù)據(jù)放入集合尾部 ##
  private Context context;
  private View view;
  private String path;
  private XListView xlv;
  private LinkedList<Data> listData;

  private Handler handler = new Handler() {

    @SuppressWarnings("unchecked")
    public void handleMessage(android.os.Message msg) {

      int code = msg.arg1;
      if(msg.arg1==400){
        Toast.makeText(context, "數(shù)據(jù)格式解析不正確", 0).show();
      }
      else{
        NewsFragmentAdapter myAdapter = null;
        switch (code) {
        case 0:
          // 默認(rèn)
          listData = (LinkedList<Data>) msg.obj;
          myAdapter = new NewsFragmentAdapter(context, listData);
          xlv.setAdapter(myAdapter);
          break;
        case 1:
          LinkedList<Data> shualist = (LinkedList<Data>) msg.obj;
          myAdapter = new NewsFragmentAdapter(context, shualist);
          for (int i = 0; i < shualist.size(); i++) {
            listData.addFirst(shualist.get(i));
          }
          myAdapter.notifyDataSetChanged();
          stopLoadOrRefresh();
          break;
        case 2:
          LinkedList<Data> loadlist = (LinkedList<Data>) msg.obj;
          myAdapter = new NewsFragmentAdapter(context, loadlist);
          for (int i = 0; i < loadlist.size(); i++) {
            listData.addLast(loadlist.get(i));
          }
          myAdapter.notifyDataSetChanged();
          stopLoadOrRefresh();
          break;
        default:
          break;
        }
      }
    };
  };

  @Override
  public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    context=getActivity();
  }

  @Override
  public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
    view = inflater.inflate(R.layout.fragment, container, false);

    path = getArguments().getString("path");

    // 配置Xlist
    xlv = (XListView) view.findViewById(R.id.xlv); // 獲得控件
    xlv.setPullRefreshEnable(true);         // 設(shè)置可以下拉刷新
    xlv.setPullLoadEnable(true);          // 設(shè)置可以上拉加載
    xListViewListener();              // 調(diào)用XListView的監(jiān)聽(tīng)方法

    if(path != null){
      getMessage(path, 0);            // 調(diào)用方法請(qǐng)求數(shù)據(jù)
    }

    itemClickListner();               // 調(diào)用XListView條目點(diǎn)擊監(jiān)聽(tīng)方法
    return view;
  }

  private void itemClickListner() {

    xlv.setOnItemClickListener(new OnItemClickListener() {
      @Override
      public void onItemClick(AdapterView<?> arg0, View arg1, int arg2, long arg3) {
        Intent intent=new Intent(context, WebViewActivity.class);
        intent.putExtra("path", listData.get(arg2-1).article_url);
        startActivity(intent);
      }
    });
  }

  public void xListViewListener() {
    xlv.setXListViewListener(new IXListViewListener() {

      // 當(dāng)下拉刷新時(shí)實(shí)現(xiàn)的操作
      @Override
      public void onRefresh() {
        getMessage(path, 1);  // 請(qǐng)求網(wǎng)絡(luò)，將新請(qǐng)求的內(nèi)容加載到集合前端
      }

      // 當(dāng)上拉加載時(shí)實(shí)現(xiàn)的操作內(nèi)容
      @Override
      public void onLoadMore() { // 請(qǐng)求網(wǎng)絡(luò)，將請(qǐng)求的新內(nèi)容加載到集合后端
        getMessage(path, 2);
      }
    });

  }

  public void getMessage(String path, final int code) {

    HttpUtils utils = new HttpUtils();

    // 設(shè)置刷新間隔時(shí)間，如果不設(shè)置默認(rèn)一分鐘后才能刷新出新內(nèi)容
    utils.configCurrentHttpCacheExpiry(0);

    utils.send(HttpMethod.GET, path, new RequestCallBack<String>() {

      // 請(qǐng)求網(wǎng)絡(luò)失敗回調(diào)的方法
      @Override
      public void onFailure(HttpException arg0, String arg1) {
      }

      // 請(qǐng)求網(wǎng)絡(luò)成功回調(diào)的方法
      @Override
      public void onSuccess(ResponseInfo<String> arg0) {
        String info = arg0.result;

        Gson gson = new Gson();
        LinkedList<Data> list = gson.fromJson(info, ModelBean.class).data;
        Message message = new Message();
        if(list != null){
          message.arg1 = code;
          message.obj = list;
        }else{
          message.arg1=400;
        }
        handler.sendMessage(message);
      }
    });
  }

  private void stopLoadOrRefresh() {
    // 停止加載
    xlv.stopLoadMore();
    // 停止刷新
    xlv.stopRefresh();
    // 最近一次刷新時(shí)間
    xlv.setRefreshTime(getTime());
  }

  public String getTime() {
    // 格式化時(shí)間
    SimpleDateFormat format = new SimpleDateFormat("hh:mm:ss");
    Date date = new Date();
    String time = format.format(date);
    return time;
  }